With the error handling functionality, you can capture errors that otherwise would cause the Transformation to halt. Instead of aborting, the rows that cause the errors are sent to a different stream for further treatment.
The error handling functionality is implemented at step level. You don't need to implement error handling in every step. In fact, you cannot do that because not all steps support error handling. The objective of error handling is to implement it in the steps where it is more likely to have errors.
A typical situation where you should consider handling errors is while changing the metadata of fields. That works perfectly as long as you know that the data is good, but it might ...
